Petrol power helped shape the 20th century, but its decline may define the 21st. So how will the future of urban transport look?
The fight against congestion is getting some new tools: mobile phones and complex algorithms.
Safely mimicking all foibles in software and hardware of driving will take at least another decade, if not longer.
There are bright ideas for how to make our cities more fluid, but they won’t do much good unless decision-makers show more vision and courage.
It can be difficult to effect behavioural change in large cities, but Stockholm and London have shown that a well-conceived nudge will deliver results.
Cycling is healthy and good for the environment – so no wonder bicycle use in some European cities has doubled since the early 2000s.